110 search results - page 7 / 22 » Maintaining Data Cubes under Dimension Updates |
EDBT
2009
ACM
14 years 2 months ago
2009
ACM
In this paper we consider distributed K-Nearest Neighbor (KNN) search and range query processing in high dimensional data. Our approach is based on Locality Sensitive Hashing (LSH...
ICDM
2008
IEEE
14 years 2 months ago
2008
IEEE
OLAP (On-Line Analytical Processing) is an important notion in data analysis. Recently, more and more graph or networked data sources come into being. There exists a similar need ...
PDIS
1996
IEEE
13 years 11 months ago
1996
IEEE
A warehouse is a data repository containing integrated information for e cient querying and analysis. Maintaining the consistency of warehouse data is challenging, especially if t...
VLDB
2004
ACM
14 years 7 months ago
2004
ACM
Abstract. In dynamic environments like the Web, data sources may change not only their data but also their schemas, their semantics, and their query capabilities.When a mapping is ...
ESA
2005
Springer
14 years 1 months ago
2005
Springer
Abstract. A materialized view is a certain synopsis structure precomputed from one or more data sets (called base tables) in order to facilitate various queries on the data. When t...